Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/005—Compositions containing perfumes; Compositions containing deodorants

Definitions

• the present invention relates to aminoglycoside antibiotic derivatives which can be used for antimicrobial and deodorant processing of a fiber product having hydrophobic surface in order to provide the fiber product with antibacterial and deodorant properties, to inhibit the growth of harmful microorganisms on the fiber product to thereby prevent deterioration of the fiber product caused by harmful microorganisms as well as a processing method using the same.
• aminoglycoside antibiotic derivatives according to the present invention can be applied to the antimicrobial processing of products other than fiber products, for example, package materials and industrial materials.
• the derivarives enables the processing of these materials at a high safety compared with known processing agents.
• the conventional antibacterial processing agents used for the processing of fiber materials are as follows:
• antibacterial and deodorant processing agents comprising silicon-containing quaternary ammonium salts and polyoxyethylene trialkylammonium chlorides as the major components have been frequently employed.
• aminoglycoside antibiotics are effective as an antibacterial and deodorant processing agent for fibers and other materials (EP-A-0 387 586).
• a polyoxyethylene trialkylammonium chloride shows somewhat affinity for a hydrophobic material due to properties of its terminal group. However, since it cannot be bound to a hydrophobic material, this compound comes off during washing to thereby seriously deteriorate antibacterial and deodorant properties provided for the material.
• a silicon-containing quaternary ammonium salt In order to overcome this disadvantage, there has been developed a silicon-containing quaternary ammonium salt.
• an alkoxysilane group is introduced into the terminal of a quaternary ammonium salt which contributes to an antibacterial effect.
• the alkoxysilane fuctions to prevent the silicon-containing quaternary ammonium salt from coming off during washing.
• This silicon-containing quaternary ammonium salt can adhere to the surface of a material to be processed by forming a covalent bond between the alkoxysilane and a hydroxyl group located on the surface of the material and further allowing the silicon-containing quaternary ammonium salt molecules to be graft-polymerized thereon to each other to thereby form a thin film on the surface of the material.
• the silicon-containing quaternary ammonium salt firmly adheres to the material.
• the binding force and the adhesion force between the silicon-containing quaternary ammonium salt and the material are so weak that the silicon-containing quaternary ammonium salt is easily liberated and removed when a physical force (e.g. rubbing) is applied.
• aminoglycoside antibiotics are strongly adsorbed by a material having a hydrophilic surface, presumedly through a hydroxyl group. Thus it has a high fastness to washing. However the aminoglycoside antibiotics neither specifically adsorb a material having hydrophobic surface nor have fastness to washing.
• An object of the present invention is to provide an antibacterial and deodorant processing agent which can provide an material to be processed, particularly one having a hydrophobic surface, with sustained antibacterial and deodorant properties without coming off during washing, which is difficult in the processing with the use of known antibacterial and deodorant processing agents, and which shows elevated applicability.
• the desired agent is required to have the following properties.
• aminoglycoside antibiotics satisfies all of these four requirements, it shows only limited adsorption on a material having hydrophobic surface.
• the antibacterial and deodorant processing agent for processing of fiber products is usually used at the final stage of the processing of the dyeing process together with a conventional finishing agent.
• the finishing stage in which antistatic and texture-improving treatments are usually performed, comprises the steps of diluting or dissolving processing agents so as to give an appropriate concentration, immersing the textile to be treated therein, squeezing the textile to control the amounts of the adsorbed processing agents, and drying the textile.
• An antibacterial and deodorant processing agent is appropriately diluted and then combined with the aqueous solution of the other processing agents for practice of the processing treatment.
• the processing is effected in an aqueous system and the processing agents are either water soluble materials or resin emulsions dispersed in an aqueous solvent.
• novel chemicals which have been developed as processing agents are also soluble in water or dispersible in water as well as conventional agents from the viewpoint of the easiness in handling.
• a texture-improver and/or an antistatic agent can be applied to the material to form a film of these agents on the surface of the material even after drying the material.
• a texture-improver and/or an antistatic agent can be applied to the material to form a film of these agents on the surface of the material even after drying the material.
• a material having hydrophobic surface or carrying no functional group on the surface it limitedly interacts with the film-forming substances. Therefore, it is required to maintain the contact of the surface of the material with the film through the strength of the film per se in order to achieve a high film stability.
• concentrations of the processing agents raised to elevate the amount of the agents adhered to the material it is unavoidable that the texture of the processed proudct is changed.
• a silicon-containing quaternary ammonium salt which reacts with a hydroxyl group on the surface of a material as described above, can be used in a relatively mild treatment in the dyeing finishing process, for example, in the water-washing stage subsequent to dyeing.
• the derivative of aminoglycoside antibiotic according to the present invention is used in the dyeing stage of the processing of a material having hydrophobic surface (in particular, one to be dyed with a dispersed dye), antibacterial and deodorant properties are provided for the material as well as a high fastness to washing.
• the processing is performed under relatively severe conditions so as to sufficiently diffuse a dye into fibers.
• the processing conditions are determined so that each fiber material can sufficiently swell and the dye can easily diffuse within the material.
• dyeing is performed under elevated pressure at a high temperature (around 130°C).
• the fiber swells in water sufficient to allow the dye to diffuse therein and that the crystal structure of the polymer is considerably loosened. If an antibacterial and deodorant processing agent is used together with the dye and behaves similar to the dye, the antibacterial and deodorant processing agent might diffuse within the fiber and stably persist therein. Thus the antibacterial and deodorant processing properties of the material are expected to maintain.
• aminoglycoside antibiotic derivative in which one or more amino groups of the aminoglycoside antibiotic is converted into a Schiff base and a reduced product of the Schiff base compound can sufficiently withstand washing in practice when employed in a conventional manner, though a slight decrease in fastness to washing is observed.
• derivatives in which all amino groups are converted into Schiff bases those having a high crystallinity can be isolated and then identified based on, for example, physical properties thereof.
• derivatives other than those mentioned above in particular, each or a specific one of those prepared by using an aldehyde in an amount not enough for converting all amino groups into Schiff bases (it is presumed that 15 derivatives are obtained from an aminoglycoside antibiotic having 4 amino groups), in view of the stabilities of the Schiff bases.
• the processing agent of the present invention may be a mixture of such derivatives.
• antibacterial activity of the derivative is lowered as the molecular weight of the derivative increaes in proportion to an increase in the amount of the employed aldehyde.
• the antibacterial activity of Schiff base derivatives is proportional to the amount of the aminoglycoside antibiotic contained therein.
• the effectiveness of each component depends exclusively on the aminoglycoside antibiotic contained therein. Therefore not the composition ratio of the components but the content of the aminosglycoside antibiotic is significant in the evaluation of the effectiveness thereof.
• the solvent may be selected from lower alkanols such as methanol and ethanol, tetrahydrofuran (THF), dioxane, methyl cellosolve and mixtures thereof with water.
• the solvent is used in an amount of 6 to 10 part by weight based on the weight of aminoglycoside antibiotic.
• the reaction can be carried out at room temperature for about 16 hours. When the reaction product thus obtained precipitates after the completion of the reaction, the precipitate is collected by filtration. When no precipitate is formed, the reaction mixture is concentrated and then extracted with, for example, ether or isopropyl ether (IPE) to thereby give the desired Shiff base derivative.
• IPE isopropyl ether
• the resulting derivative is reduced by adding a reducing agent such as NaBH4, NaCNBH3 or LiAlHg or a catalyst for catalytic reduction such as palladium to the reaction mixture.
• a reducing agent such as NaBH4, NaCNBH3 or LiAlHg or a catalyst for catalytic reduction such as palladium
• the reduction is carried out at room temperature for 10 minutes to 1 hour.
• the precipitate thus formed is collected by filtration and dried to obtain an N-alkyl derivative.
• the reducing agent may be added to the reaction mixture from the beginning.
• Aldehyde and the reducing agent are both used in an amount of 2 to 3 part by weight based on the weight of aminoglycoside antibiotic.
• Examples of usable aminogycoside antibiotics include neamine, neomycin, paromomycin, lividomycin, ribostamycin, kanamycin A, kanamycin C, tobramycin, panimycin, gentamicin A, gentamicin B, gentamicin C, gentamicin C 1a , gentamicin C2, sisomicin, netilmicin, amikacin and streptomycin.
• the antibacterial and deodorant processing agent according to the present invention is used in an amount of about 0.05 wt% based on the weight of the material to be treated. A concentration of the processing agent in the processing solution is adjusted to about 0.0025 wt%.
• the derivative of the aminoglycoside antibiotic of the present invention is applicable not only to antibacterial and deodorant processing agents for the sanitary processing of fibers but also to antibacterial agents for nonaqueous coatings, resin emulsions, printing inks, rubbers, plastics, films, coated wires, oils and adhesives.
• An antiseptic agent for metal processing is used in order to suppress or prevent various deteriorations caused by microorganisms including bacteria, fungi and yeasts grown in a metal processing oil or a water soluble engineering oil.
• Microorganisms cause the evolution of an offensive odor, the formation of slime, the breakage of emulsion and rusting in industrial emulsions of water soluble engineering oils such as cutting oil, grinding oil, engineering oil and calendering oil.
• water soluble engineering oils such as cutting oil, grinding oil, engineering oil and calendering oil.
• Pseudomonas aeruginosa and Pseudomonas oleovorans causes serious deteriorations in particular.
• a polyester thread fabric (twill) having hydrophobic surface was dyed and simultaneously treated with N-anisylideneneamine as prepared in Preparation Example 1 below in the following manner to perform the antibacterial and deodorant processing.
• the dyeing solution thus prepared was poured into a dyeing pot (manufactured by Texam Co., Ltd., for mini-color dyeing test machine) and 10 g of the polyester thread fabric (twill), which had been scoured, was added thereto.
• the resulting test pot was introduced into a dyeing test machine (manufactured by Texam Co., Ltd., mini-color dyeing test machine) and the temperature was elevated from 70°C at a rate of 1°C per minute. When the temperature reached 130°C, it was maintained at this level for 30 minutes. Then it was cooled to room temperature and the test fabric was taken out.
• a dyeing test machine manufactured by Texam Co., Ltd., mini-color dyeing test machine
• the antibacterial property of the obtained test fabric was evaluated in accordance with a bacterial count method as described below.
• Staphylococcus aureus IFO 12732 is incubated at 35 to 37°C for 24 hours on the plain hurt infusion agar medium and then sterilized normal bouillon medium is inoculated with a loopful of the above bacterial cells followed by shake culture at 35 to 37°C for 6 to 10 hours.
• the culture medium is decimally diluted with a sterilized physiological saline to adjust a cell density to 5-30 X 105 cells/ml.
• the test fabric and control fabric are each placed into a culture vial and autoclaved. Then, the culture is applied on to the fabric and incubated at 35-37°C for 18 hours.
• the antibacterial treatment is regarded as effective when log B A > 2 .
• test fabric was examined for fastness to washing by a washing test in accordance with the following method.
• Water of 40°C is added to a domestic electric washing machine and a synthetic detergent for clothing is added thereto to a concentration of 2 g/l.
• the test fabric is put into the washing solution to a bath ratio of 1 : 30.
• the washing machine is worked for 5 minutes and the fabric is dehydrated with a dryer.
• the fabric is rinsed with water of ordinary temperature in the same bath ratio for 2 minutes and dehydrated. The rinsing is repeated in the same manner. Then, the fabric is hung to dry so as not to get the sun.
• the thus-obtained fabric is examined for antibacterial property in accordance with the above-described bacterial cell count method.
• the antibacterial treatment is regarded as effective when .
• the antibacterial and deodorant processing was performed at the final finishing stage, similar to conventional cases, using N-anisylideneneamine in the following manner.
• N-anisylideneneamine 0.01g was added to 100 ml of Turkey red oil and the mixture was emulsified to serve as a processing solution. Then a polyester thread fabric (twill) test piece (30 cm x 40 cm) was immersed in the resulting processing solution. This moistened test fabric was squeezed with a rubber roll so that the weight of the processing solution contained in the fabric reached 80% of the weight of the test fabric. After hot-air drying at 110°C for 3 minutes, the test fabric was heat-treated at 180°C for 1 minute.
• test fabric thus obtained was subjected to a antibacterial test and a test for fastness to washing in the same manner as in Example 1.
• the resulting mixture was poured into a 500 ml Erlenmeyer flask and then 1 ml of a viable bacterial cell suspension (108 cells/ml) was added thereto.
• a viable bacterial cell suspension 108 cells/ml
• Staphylococcus aureus IFO 12732 or Escherichia coli IFO 3972 was used as the test strain. This test solution was incubated at 30°C for 1 month.
• the antibacterial and deodorant processing agent is applicable to an antibacterial agent for metal processing oils.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Biochemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Microbiology (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

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• 1991
  • 1991-02-14 US US07/654,989 patent/US5268168A/en not_active Expired - Fee Related
  • 1991-02-18 EP EP91102272A patent/EP0445563B1/fr not_active Expired - Lifetime
  • 1991-02-18 ES ES91102272T patent/ES2075230T3/es not_active Expired - Lifetime
  • 1991-02-18 DE DE69109895T patent/DE69109895T2/de not_active Expired - Fee Related

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